a-4a=5a+12

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Solution for a-4a=5a+12 equation: 



a-4a=5a+12

We move all terms to the left:

a-4a-(5a+12)=0

We add all the numbers together, and all the variables

-3a-(5a+12)=0

We get rid of parentheses

-3a-5a-12=0

We add all the numbers together, and all the variables

-8a-12=0

We move all terms containing a to the left, all other terms to the right

-8a=12

a=12/-8

a=-1+1/2

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